Evaluation and Obstacle Diagnosis of Low-carbon Intensive Land Use in Kaifeng City

Low carbon intensive use of urban land is an important trend to achieve regional high quality development.In this study,with Kaifeng municipal district as an example,the catastrophe progression model was used to estimate and analyze the low-carbon intensive use level of urban land in Kaifeng City from 2011 to 2020,and the obstacle factors in the process of low-carbon intensive land use in Kaifeng City were revealed by using the obstacle degree model.The results showed that during the study period,the low-carbon intensive use of land in Kaifeng City showed a slow,fluctuating and declining trend,and the overall situation was in a generally intensive state.The land input level and land output level were on the rise,while the low-carbon level of land and the degree of land use were on the decline.Currently,the main obstacle factors restricting the low-carbon intensive use of land in Kaifeng City were the carbon structure coefficient of land use,energy consumption per square kilometer,carbon emissions per square kilometer,carbon emissions per capita,and non-agricultural land use efficiency.In the future,it is necessary to further improve the land use structure and promote the high-quality development of Kaifeng City.

Evaluation of the Green Development Level and Its DynamicChanges in Qinghai Province

Realizing comprehensive green transformation is the necessary path for high-quality and sustainabledevelopment in Qinghai Province.We constructed an indicator system for evaluating the green development inQinghai from five dimensions:resource utilization,environmental protection,ecological protection,growth quality,and green life based on the national green development indicator system;and comprehensively used the entropymethod,comprehensive index method,coupled coordination model,and obstacle degree model to evaluate thegreen development level of Qinghai from 1998 to 2022.The results showed four important points.(1)The greendevelopment comprehensive index of Qinghai increased gradually in the past 25 years,but there is still much roomfor improvement.(2)The focus of green development changed in the three evaluation stages.The focus in1998-2004 and 2005-2011 was on improving the ecological environment,and in 2012-2022 the focus was oneconomic and industrial development and the improvement of residents’living standards.(3)Since 2001,the coupling degree of the five dimensions of green development has maintained a high-level coupling stage,and the coordinated development degree entered a good coordination stage in 2021.(4)The key obstacles hindering the improvement of green development level shifted from growth quality to resource utilization and ecological protection.Therefore,improving the resource utilization level is the primary task for Qinghai to achieve high-quality green development.The study provides methodological support for green development evaluation,and suggestions for directing the formulation of green development policies in Qinghai Province.